doomemacs/modules/lang/cc/README.org

:lang cc

• Table of Contents
• Install
  • MacOS
  • Arch Linux

This module adds support for the C-family of languages: C, C++, and Objective-C.

• Code completion (company-irony)
• eldoc support (irony-eldoc)
• Syntax-checking (flycheck-irony)
• Code navigation (irony)
• File Templates (c-mode, c++-mode)
• Snippets (cc-mode, c-mode, c++-mode)
• Several improvements to C++11 indentation and syntax highlighting.

C contends with Haskell and Ruby for my favorite language. That said, it's more accurate to say I write C, but with two or three C++ features.

The module provides nominal support for Objective-C, which I really only use to inspect generated glue code for iOS mobile apps. Otherwise, I prefer Swift.

Table of Contents   TOC

• Install

  • MacOS
  • Arch Linux

Install

This module requires irony-server for most of its features, which depends on cmake and libclang.

MacOS

Due to linking issues, MacOS users must compile irony-server manually:

brew install cmake
brew install llvm  # 1gb+ installation! May take a while!

git clone https://github.com/Sarcasm/irony-mode irony-mode
mkdir irony-mode/server/build
pushd irony-mode/server/build

DEST="$HOME/.emacs.d/.local/$(hostname)/etc/irony-server/"
cmake -DCMAKE_INSTALL_RPATH_USE_LINK_PATH=ON \
      -DCMAKE_INSTALL_PREFIX="$DEST" ../
cmake --build . --use-stderr --config Release --target install

install_name_tool -change @rpath/libclang.dylib \
    /usr/local/opt/llvm/lib/libclang.dylib \
    "$DEST/bin/irony-server"

# cleanup
popd
rm -rf irony-mode

Arch Linux

sudo pacman --needed --noconfirm -S clang cmake

Then run M-x irony-install-server in Emacs.